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Results
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Owing
to its modularity, ESOP HA provides better prosthesis
adjustment to the bony environment.
Clinical follow-up shows that there is no
resulting thigh pain. A 9 year x ray follow-up period shows
that there is no shaft hyperostosis or bone modification.
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 Clinical result examples
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124 prostheses in 116 patients
operated on between 06/01/91 and 31/12/93
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- 67 men (average age: 61)
- 49 women (average age:
65)
- 64 left, 60 right
- Hip osteoarthritis, ONA,
etc.
- Average observation
period: 6.9 years (72 -108 months)
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The
women's weight varied form 45 to 105, with a 26.1
BMI
The
men's weight ranged from 50 to 125 kg with a 26.8
BMI.
The
average BMA was 26.59 (17.56 41.02) with a typical
difference of 4.02
In
all 16 % of the prostheses (20 out of 124) had to face
significant obesity (BM1 equal or over 30).
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1.
MORPHOTYPE::
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- 71 standard: 57.5
%
- 31 cylindrical: 25
%
- 22 trumpet shape: 17.5
%
- 87 normal corticals:
75.5 %
- 15 thinned: 12.5
%
- 14 enlarged: 12 %
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2.
Clinical results
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- PMA: goes from 8.09 to
17.29
- If BMI > 30: 17.41 (p
< 0.005)
- If age > 75: 17.39 (p
< 0.005)
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3. x
ray results
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- anatomic axis: 110 i.e.
88.7 %
- varus: 8 i.e. 6.45
%
- valgus: 6 i.e. 4.83
%
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The x
ray assessment is based on standing, front view of the hip
and a front and side view of the hip at each
consultation.
ESOP
HA osteo-integration criteria and possible radiological
reactions have been defined on the basis of Engh, Epinette
and Geesink's work.
Gruen
and Callaghan's anatomic zones are used.
The
following items are analysed: edges, reactive lines,
endosted ossification, stem-end modifications, calcar
modifications, lyses and migrations.
The ossification, if any, has
been classified according to Brooker's
classifications.
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Several examples :
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window
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Click on
an illustration to increase it then to close the
window
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Click on
an illustration to increase it then to close the
window
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Click on
an illustration to increase it then to close the
window
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Click on
an illustration to increase it then to close the
window
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